Koskamo

MX Probe MCP

An MCP server for email verification that allows AI agents to verify single or batch emails, manage API signups, check balances, and purchase credits. It provides send, hold, or kill verdicts with reasons to prevent bounces during outreach.

Visit mxprobe.dev

Package and access

Local package with source-attributed installation metadata. Koskamo does not execute packages during review.

MX Probe MCP logo, by mxprobe.devVendor evidenceLocal stdioSource reviewed; not executedOperated by mxprobe.dev
Vendor documentation

Checks and signals

Each line is separate evidence, not a trust score.

  • Passed Official MCP Registry namespace is tied to mxprobe.dev ·
  • Popularity 2 GitHub stars

What you can do with it

  • Verify if an email address is deliverable before sending
  • Batch verify multiple email addresses for outreach lists
  • Provision new API keys and buy credits programmatically
  • Check remaining API credit balance

Source and maintenance

Vendor evidenceRegistry 0.2.6MIT
mcp-registry: dev.mxprobe/mxprobe@0.2.6Source repositoryProject website
Last repository push
Latest release
v0.2.5
Maintenance checked

Packages and installation

Source-provided package data. Koskamo has not executed or live-probed this package.

mxprobe 0.2.6

npmnpx
mxprobe package definition
{
  "version": "0.2.6",
  "transport": "stdio",
  "identifier": "mxprobe",
  "runtimeHint": "npx",
  "registryType": "npm",
  "registryBaseUrl": "https://registry.npmjs.org",
  "packageArguments": [
    {
      "type": "positional",
      "value": "mcp",
      "valueHint": "mcp",
      "isRequired": true,
      "description": "Start the MCP server on stdio"
    }
  ],
  "environmentVariables": [
    {
      "name": "MXPROBE_API_KEY",
      "description": "Hosted-tier API key from POST /v1/signup or the signup tool. Without it the verify tools run the free local DNS tier."
    }
  ]
}

Tools

Reported by the attributed source; not independently observed by Koskamo.

No tool definitions available.

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

  • · repository · passed · metadata changed · updated
  • · backfill · recorded · Pre-expansion baseline; unobserved rich metadata remains unknown

Connect from your client

Each snippet configures the same source-provided package; replace placeholders before use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.
Cursor configuration
{
  "mcpServers": {
    "mx-probe-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "mxprobe@0.2.6",
        "mcp"
      ],
      "env": {
        "MXPROBE_API_KEY": "<YOUR_MXPROBE_API_KEY>"
      }
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.
Cline configuration
{
  "mcpServers": {
    "mx-probe-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "mxprobe@0.2.6",
        "mcp"
      ],
      "env": {
        "MXPROBE_API_KEY": "<YOUR_MXPROBE_API_KEY>"
      }
    }
  }
}

VS Code

Merge this local stdio configuration, replace every placeholder environment value, and restart VS Code. Koskamo has not executed this package.
VS Code configuration
{
  "servers": {
    "mx-probe-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "mxprobe@0.2.6",
        "mcp"
      ],
      "env": {
        "MXPROBE_API_KEY": "<YOUR_MXPROBE_API_KEY>"
      }
    }
  }
}

Claude Desktop

Merge this local stdio configuration, replace every placeholder environment value, and restart Claude Desktop. Koskamo has not executed this package.
Claude Desktop configuration
{
  "mcpServers": {
    "mx-probe-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "mxprobe@0.2.6",
        "mcp"
      ],
      "env": {
        "MXPROBE_API_KEY": "<YOUR_MXPROBE_API_KEY>"
      }
    }
  }
}

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